Rev. Martin Luther King Jr., director of segregated bus boycott, with 7080 sign across his chest for police mug shot, sitting on chair against wall in station house after his arrest for directing city-wide boycott of segregated buses in 1956.

Rev. Martin Luther King Jr., director of segregated bus boycott, with 7080 sign across his chest for police mug shot, sitting on chair against wall in station house after his arrest for directing city-wide ... more

Civil Rights leader Rev. Martin Luther King Jr. escorted by police officers in courthouse as he is taken into a hearing on a charge of probation violation following his arrest for assisting a student sit-in demonstration.

Civil Rights leader Rev. Martin Luther King Jr. escorted by police officers in courthouse as he is taken into a hearing on a charge of probation violation following his arrest for assisting a student sit-in ... more

Rev. Martin Luther King Jr. holding his son Martin III as his daughter Bernice and wife Coretta greet him at the airport upon his release from Georgia State prison after incarceration for leading boycotts.

Rev. Martin Luther King Jr. holding his son Martin III as his daughter Bernice and wife Coretta greet him at the airport upon his release from Georgia State prison after incarceration for leading boycotts.

American President John F Kennedy (1917 - 1963) in the White House with leaders of the civil rights 'March on Washington' (right to left) Roy Wilkins (1910 - 1981), Walter Reuther (1907 - 1970), Vice-President ... more

Photo: MPI, Getty Images

American President John F Kennedy (1917 - 1963) in the White House... Photo-5071714.68594 - NewsTimes

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Participants in the August 28, 1963 March on Washington all around the Lincoln Memorial. This march, organized by Rev. Martin Luther King Jr., demanded equal rights for American blacks.

Participants in the August 28, 1963 March on Washington all around the Lincoln Memorial. This march, organized by Rev. Martin Luther King Jr., demanded equal rights for American blacks.

Photo: Keystone-France, Gamma-Keystone Via Getty Images

Participants in the August 28, 1963 March on Washington all around... Photo-5071817.68594 - NewsTimes

American president John F. Kennedy in the White House with leaders of the civil rights 'March on Washington' (left to right) Whitney Young, Dr Martin Luther King (1929 - 1968), Rabbi Joachim Prinz, A. Philip ... more

Photo: Three Lions, Getty Images

American president John F. Kennedy in the White House with leaders... Photo-5071739.68594 - NewsTimes

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American folk and pop group Peter, Paul and Mary perform during the March on Washington for Jobs and Freedom, Washington DC, August 28, 1963. The trio behind the microphone features, from left, Paul Stookey, Mary Travers (1936 - 2009), and Peter Yarrow. The march and rally provided the setting for the Rev. Martin Luther King Jr.'s iconic 'I Have a Dream' speech.

American folk and pop group Peter, Paul and Mary perform during the March on Washington for Jobs and Freedom, Washington DC, August 28, 1963. The trio behind the microphone features, from left, Paul Stookey, ... more

Photo: PhotoQuest, Getty Images

American folk and pop group Peter, Paul and Mary perform during the... Photo-5071818.68594 - NewsTimes

Civil Rights leaders pose in the Lincoln Memorial during the March on Washington for Jobs and Freedom, Washington DC, August 28, 1963. Pictured are, standing from left, director of the National Catholic ... more

Overhead view of the massive crowd assembled on the Mall in front of the Reflecting Pool and between the Lincoln and Washington monuments during the civil rights March on Washington for Jobs and Freedom.

Overhead view of the massive crowd assembled on the Mall in front of the Reflecting Pool and between the Lincoln and Washington monuments during the civil rights March on Washington for Jobs and Freedom.

Photo: Robert W. Kelley, Time & Life Pictures/Getty Image

Overhead view of the massive crowd assembled on the Mall in front... Photo-5071787.68594 - NewsTimes

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Rev. Martin Luther King Jr. addressing crowd of demonstrators outside the Lincoln Memorial during the March on Washington for Jobs and Freedom i 1963.

Rev. Martin Luther King Jr. addressing crowd of demonstrators outside the Lincoln Memorial during the March on Washington for Jobs and Freedom i 1963.

Screen capture from the CBS national broadcast of the 'I Have a Dream' speech of American civil rights leader Rev. Martin Luther King Jr., Washington, DC, August 28, 1963. King Jr. delivered his speech on the steps of the Lincoln Memorial to over 200,000 supporters at the March on Washington for Jobs and Freedom.

Screen capture from the CBS national broadcast of the 'I Have a Dream' speech of American civil rights leader Rev. Martin Luther King Jr., Washington, DC, August 28, 1963. King Jr. delivered his speech on the ... more

Photo: CBS Photo Archive, Getty Images

Screen capture from the CBS national broadcast of the 'I Have... Photo-5071782.68594 - NewsTimes

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Taboola Gallery Frame Item-85307.68594 - NewsTimes

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NBC News' Merrill "Red" Mueller, Rev. Martin Luther King Jr. during an interview at the March on Washington for Jobs and Freedom political rally at the Lincoln Memorial on August 28, 1963.

NBC News' Merrill "Red" Mueller, Rev. Martin Luther King Jr. during an interview at the March on Washington for Jobs and Freedom political rally at the Lincoln Memorial on August 28, 1963.

View of people as they hold hands and sing during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s iconic 'I Have a Dream' speech.

View of people as they hold hands and sing during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s iconic 'I Have a ... more

Photo: Paul Schutzer, Time & Life Pictures/Getty Image

View of people as they hold hands and sing during the March on... Photo-5071830.68594 - NewsTimes

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View of participants during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s iconic 'I Have a Dream' speech.

View of participants during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s iconic 'I Have a Dream' speech.

Photo: Paul Schutzer, Time & Life Pictures/Getty Image

View of participants during the March on Washington for Jobs and... Photo-5071829.68594 - NewsTimes

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View of a woman, among others, as she sings during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Martin Luther King Jr.'s iconic 'I Have a Dream' speech.

View of a woman, among others, as she sings during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Martin Luther King Jr.'s iconic 'I Have a ... more

Photo: Paul Schutzer, Time & Life Pictures/Getty Image

View of a woman, among others, as she sings during the March on... Photo-5071833.68594 - NewsTimes

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Close-up of a man, singing or shouting, among a larger crowd during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s iconic 'I Have a Dream' speech.

Close-up of a man, singing or shouting, among a larger crowd during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Marin Luther King Jr.'s ... more

Photo: Paul Schutzer, Time & Life Pictures/Getty Image

Close-up of a man, singing or shouting, among a larger crowd during... Photo-5071827.68594 - NewsTimes

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Close-up of a woman, among a larger crowd, her face contorted with emotion, during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Martin Luther King Jr.'s iconic 'I Have a Dream' speech.

Close-up of a woman, among a larger crowd, her face contorted with emotion, during the March on Washington for Jobs and Freedom, Washington DC, August 23, 1963. The march provided the setting for Rev. Martin ... more

Photo: Paul Schutzer, Time & Life Pictures/Getty Image

Close-up of a woman, among a larger crowd, her face contorted with... Photo-5071831.68594 - NewsTimes

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Civil rights leader Rev. Martin Luther King Jr. chatting head-to-head with Pres. Lyndon Johnson while sitting opposite him during his visit at the White House in 1963.

Civil rights leader Rev. Martin Luther King Jr. chatting head-to-head with Pres. Lyndon Johnson while sitting opposite him during his visit at the White House in 1963.

Civil rights leader Dr. Martin Luther King, Jr. stands with his wife Coretta and New York City Mayor Robert F. Wagner as is presented with the Medal of Honor of the City of NY, New York City, December 18, 1964.

Civil rights leader Dr. Martin Luther King, Jr. stands with his wife Coretta and New York City Mayor Robert F. Wagner as is presented with the Medal of Honor of the City of NY, New York City, December 18, 1964.

President Lyndon B Johnson discusses the Voting Rights Act with civil rights campaigner Rev. Martin Luther King Jr.. The act, part of President Johnson's 'Great Society' program trebled the number of black voters in the south, who had previously been hindered by racially inspired laws, 1965.

President Lyndon B Johnson discusses the Voting Rights Act with civil rights campaigner Rev. Martin Luther King Jr.. The act, part of President Johnson's 'Great Society' program trebled the number of black ... more

American clergyman and civil rights campaigner Rev. Martin Luther King Jr. listening to the radio whilst leading the Alabama Civil Rights march. On the left is his fellow clergyman and campaigner Ralph Abernathy.

American clergyman and civil rights campaigner Rev. Martin Luther King Jr. listening to the radio whilst leading the Alabama Civil Rights march. On the left is his fellow clergyman and campaigner Ralph ... more

U.S. President Lyndon B. Johnson hands a pen to civil rights leader Rev. Martin Luther King Jr. during the the signing of the voting rights act as officials look on behind them, Washington, D.C., August 6, 1965.

U.S. President Lyndon B. Johnson hands a pen to civil rights leader Rev. Martin Luther King Jr. during the the signing of the voting rights act as officials look on behind them, Washington, D.C., August 6, ... more

Dr. Ralph Abernathy and Jesse Jackson (both obscured) and others stand on the balcony of Lorraine motel and point in the direction of gun shots that killed American civil rights leader Rev. Martin Luther King, Jr., who lies at their feet, Memphis, Tennessee, April 4, 1968.

Dr. Ralph Abernathy and Jesse Jackson (both obscured) and others stand on the balcony of Lorraine motel and point in the direction of gun shots that killed American civil rights leader Rev. Martin Luther King, ... more

National Guardsmen standing in front of store during riots following murder of Rev. Martin Luther King Jr.

National Guardsmen standing in front of store during riots following murder of Rev. Martin Luther King Jr.

Photo: Lee Balterman, Time & Life Pictures/Getty Image

National Guardsmen standing in front of store during riots... Photo-5071767.68594 - NewsTimes

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American civil rights leader Rev. Martin Luther King Jr. lying in state in Memphis, Tennessee, as his colleagues pay their respects to him (right to left); Andrew Young, Bernard Lee and Reverend Ralph Abernathy.

American civil rights leader Rev. Martin Luther King Jr. lying in state in Memphis, Tennessee, as his colleagues pay their respects to him (right to left); Andrew Young, Bernard Lee and Reverend Ralph ... more

Protestors in a march following the murder of Rev. Martin Luther King in 1968.

Protestors in a march following the murder of Rev. Martin Luther King in 1968.

Photo: Art Shay, Time & Life Pictures/Getty Image

Protestors in a march following the murder of Rev. Martin Luther... Photo-5071788.68594 - NewsTimes

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A large crowd of mourners follow the casket of Rev. Martin Luther King Jr. through the streets of Atlanta, Georgia. Two men carry a large sign with King's face.

A large crowd of mourners follow the casket of Rev. Martin Luther King Jr. through the streets of Atlanta, Georgia. Two men carry a large sign with King's face.

Photo: Hulton Archive, Getty Images

A large crowd of mourners follow the casket of Rev. Martin Luther... Photo-5071708.68594 - NewsTimes

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Coretta Scott King, widow of Rev. Martin Luther King Jr., and her daughter, Yolanda, sit in a car as it leaves for Martin Luther King Jr's funeral, Atlanta, Georgia. The reflection of a group of mourners standing in front of a house is visible in the window of the car.

Coretta Scott King, widow of Rev. Martin Luther King Jr., and her daughter, Yolanda, sit in a car as it leaves for Martin Luther King Jr's funeral, Atlanta, Georgia. The reflection of a group of mourners ... more

FILE -- Martin Luther King Jr. during a news conference at the Abyssinian Baptist Church in the Harlem neighborhood of New York, Nov. 14, 1965. Within days after the civil right leader was gunned down in Memphis at the age of 39, Congress passed the Civil Rights Act of 1968, which barred discrimination in housing. In 1983, President Ronald Reagan signed legislation creating a national holiday in his honor. less

FILE -- Martin Luther King Jr. during a news conference at the Abyssinian Baptist Church in the Harlem neighborhood of New York, Nov. 14, 1965. Within days after the civil right leader was gunned down in ... more